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fca1414908
* libguile/inline.h: * libguile/ports.h (scm_get_byte_or_eof, scm_peek_byte_or_eof) (scm_putc, scm_puts): Move definitions here, from inline.h.
109 lines
3.8 KiB
C
109 lines
3.8 KiB
C
/* classes: h_files */
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#ifndef SCM_INLINE_H
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#define SCM_INLINE_H
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/* Copyright (C) 2001, 2002, 2003, 2004, 2006, 2008, 2009, 2010,
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* 2011 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 3 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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/* This file is for inline functions. On platforms that don't support
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inlining functions, they are turned into ordinary functions. On
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platforms that do support inline functions, the definitions are still
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compiled into the library, once, in inline.c. */
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#include "libguile/__scm.h"
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#include "libguile/pairs.h"
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#include "libguile/gc.h"
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#include "libguile/threads.h"
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#include "libguile/array-handle.h"
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#include "libguile/ports.h"
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#include "libguile/numbers.h"
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#include "libguile/error.h"
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SCM_INLINE SCM scm_array_handle_ref (scm_t_array_handle *h, ssize_t pos);
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SCM_INLINE void scm_array_handle_set (scm_t_array_handle *h, ssize_t pos, SCM val);
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SCM_INLINE int scm_is_pair (SCM x);
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SCM_INLINE int scm_is_string (SCM x);
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SCM_INLINE SCM scm_cell (scm_t_bits car, scm_t_bits cdr);
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SCM_INLINE SCM scm_double_cell (scm_t_bits car, scm_t_bits cbr,
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scm_t_bits ccr, scm_t_bits cdr);
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SCM_INLINE SCM scm_words (scm_t_bits car, scm_t_uint16 n_words);
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#if SCM_CAN_INLINE || defined SCM_INLINE_C_IMPLEMENTING_INLINES
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/* Either inlining, or being included from inline.c. */
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SCM_INLINE_IMPLEMENTATION SCM
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scm_array_handle_ref (scm_t_array_handle *h, ssize_t p)
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{
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if (SCM_UNLIKELY (p < 0 && ((size_t)-p) > h->base))
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/* catch overflow */
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scm_out_of_range (NULL, scm_from_ssize_t (p));
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/* perhaps should catch overflow here too */
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return h->impl->vref (h, h->base + p);
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}
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SCM_INLINE_IMPLEMENTATION void
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scm_array_handle_set (scm_t_array_handle *h, ssize_t p, SCM v)
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{
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if (SCM_UNLIKELY (p < 0 && ((size_t)-p) > h->base))
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/* catch overflow */
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scm_out_of_range (NULL, scm_from_ssize_t (p));
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/* perhaps should catch overflow here too */
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h->impl->vset (h, h->base + p, v);
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}
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SCM_INLINE_IMPLEMENTATION int
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scm_is_pair (SCM x)
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{
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/* The following "workaround_for_gcc_295" avoids bad code generated by
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i386 gcc 2.95.4 (the Debian packaged 2.95.4-24 at least).
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Under the default -O2 the inlined SCM_I_CONSP test gets "optimized" so
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the fetch of the tag word from x is done before confirming it's a
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non-immediate (SCM_NIMP). Needless to say that bombs badly if x is a
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immediate. This was seen to afflict scm_srfi1_split_at and something
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deep in the bowels of ceval(). In both cases segvs resulted from
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deferencing a random immediate value. srfi-1.test exposes the problem
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through a short list, the immediate being SCM_EOL in that case.
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Something in syntax.test exposed the ceval() problem.
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Just "volatile SCM workaround_for_gcc_295 = lst" is enough to avoid the
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problem, without even using that variable. The "w=w" is just to
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prevent a warning about it being unused.
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*/
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#if defined (__GNUC__) && __GNUC__ == 2 && __GNUC_MINOR__ == 95
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volatile SCM workaround_for_gcc_295 = x;
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workaround_for_gcc_295 = workaround_for_gcc_295;
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#endif
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return SCM_I_CONSP (x);
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}
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SCM_INLINE_IMPLEMENTATION int
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scm_is_string (SCM x)
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{
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return SCM_HAS_TYP7 (x, scm_tc7_string);
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}
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#endif
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#endif
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